Java Code Examples for org.apache.http.impl.client.AbstractHttpClient#execute()
The following examples show how to use
org.apache.http.impl.client.AbstractHttpClient#execute() .
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Example 1
| Source File: HttpHelper.java From miappstore with Apache License 2.0 | 6 votes |
|
/** 执行网络访问 */
private static HttpResult execute(String url, HttpRequestBase requestBase) {
boolean isHttps = url.startsWith("https://");//判断是否需要采用https
AbstractHttpClient httpClient = HttpClientFactory.create(isHttps);
HttpContext httpContext = new SyncBasicHttpContext(new BasicHttpContext());
HttpRequestRetryHandler retryHandler = httpClient.getHttpRequestRetryHandler();//获取重试机制
int retryCount = 0;
boolean retry = true;
while (retry) {
try {
HttpResponse response = httpClient.execute(requestBase, httpContext);//访问网络
if (response != null) {
return new HttpResult(response, httpClient, requestBase);
}
} catch (Exception e) {
IOException ioException = new IOException(e.getMessage());
retry = retryHandler.retryRequest(ioException, ++retryCount, httpContext);//把错误异常交给重试机制，以判断是否需要采取从事
}
}
return null;
}
Example 2
| Source File: HttpHelper.java From NetEasyNews with GNU General Public License v3.0 | 5 votes |
|
/**
* 执行网络访问
*/
private static void execute(String url, HttpRequestBase requestBase, HttpCallbackListener httpCallbackListener) {
boolean isHttps = url.startsWith("https://");//判断是否需要采用https
AbstractHttpClient httpClient = HttpClientFactory.create(isHttps);
HttpContext httpContext = new SyncBasicHttpContext(new BasicHttpContext());
HttpRequestRetryHandler retryHandler = httpClient.getHttpRequestRetryHandler();//获取重试机制
int retryCount = 0;
boolean retry = true;
while (retry) {
try {
HttpResponse response = httpClient.execute(requestBase, httpContext);//访问网络
int stateCode = response.getStatusLine().getStatusCode();
// LogUtils.e(TAG, "http状态码：" + stateCode);
if (response != null) {
if (stateCode == HttpURLConnection.HTTP_OK){
HttpResult httpResult = new HttpResult(response, httpClient, requestBase);
String result = httpResult.getString();
if (!TextUtils.isEmpty(result)){
httpCallbackListener.onSuccess(result);
return;
} else {
throw new RuntimeException("数据为空");
}
} else {
throw new RuntimeException(HttpRequestCode.ReturnCode(stateCode));
}
}
} catch (Exception e) {
IOException ioException = new IOException(e.getMessage());
retry = retryHandler.retryRequest(ioException, ++retryCount, httpContext);//把错误异常交给重试机制，以判断是否需要采取从事
LogUtils.e(TAG, "重复次数：" + retryCount + " :"+ e);
if (!retry){
httpCallbackListener.onError(e);
}
}
}
}
Example 3
| Source File: ReadWebpage.java From codeexamples-android with Eclipse Public License 1.0 | 5 votes |
|
public void myClickHandler(View view) {
switch (view.getId()) {
case R.id.ReadWebPage:
try {
textView.setText("");
// Cast to AbstractHttpClient to have access to
// setHttpRequestRetryHandler
AbstractHttpClient client = (AbstractHttpClient) new DefaultHttpClient();
HttpGet request = new HttpGet(urlText.getText().toString());
HttpResponse response = client.execute(request);
// Get the response
BufferedReader rd = new BufferedReader(new InputStreamReader(
response.getEntity().getContent()));
String line = "";
while ((line = rd.readLine()) != null) {
textView.append(line);
}
}
catch (Exception e) {
System.out.println("Nay, did not work");
textView.setText(e.getMessage());
}
break;
}
}
Example 4
| Source File: HttpHelper.java From elasticsearch-rest-command with The Unlicense | 4 votes |
|
/**
* 读取文件内容
*/
public static String getHttpDownload(String url, String baseFolder) {
// TODO Auto-generated method stub
byte buffer[] = null;
int byteread = 0;
int bytesum = 0;
StringBuffer sb = new StringBuffer();
try {
AbstractHttpClient httpclient = new DefaultHttpClient();// 创建一个客户端，类似打开一个浏览器
httpclient.getParams().setParameter("http.connection.timeout", 100000);
HttpGet get = new HttpGet(url);// 创建一个get方法，类似在浏览器地址栏中输入一个地址
get.setHeader("Accept", "Accept text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
get.setHeader("Accept-Language", "zh-cn,zh;q=0.5");
get.setHeader("Connection", "keep-alive");
get.setHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36");
long t = System.currentTimeMillis();
HttpResponse httpResponse = httpclient.execute(get);
System.out.println(url + "请求结束:" + (System.currentTimeMillis() - t));
int statusCode = httpResponse.getStatusLine()
.getStatusCode();
if (HttpStatus.SC_OK == statusCode) {
HttpEntity ent = httpResponse.getEntity();
buffer = new byte[1024];
InputStream in = ent.getContent();
// fo=new FileOutputStream(new File(baseFolder+File.separator+filename),true);
while ((byteread = in.read(buffer)) != -1) {
bytesum += byteread;
sb.append(new String(buffer, 0, byteread, "UTF-8"));
// fo.write(buffer, 0, byteread);
}
// fo.close();
}
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
return sb.toString();
}
Example 5
| Source File: HttpHelper.java From elasticsearch-rest-command with The Unlicense | 4 votes |
|
/**
* 下载文件
*/
public static String getHttpDownloadFile(String url, String baseFolder) {
// TODO Auto-generated method stub
byte buffer[] = null;
int byteread = 0;
int bytesum = 0;
FileOutputStream fo = null;
StringBuffer sb = new StringBuffer();
String fileName = System.currentTimeMillis() + ".json";
try {
AbstractHttpClient httpclient = new DefaultHttpClient();// 创建一个客户端，类似打开一个浏览器
httpclient.getParams().setParameter("http.connection.timeout", 100000);
HttpGet get = new HttpGet(url);// 创建一个get方法，类似在浏览器地址栏中输入一个地址
get.setHeader("Accept", "Accept text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
get.setHeader("Accept-Language", "zh-cn,zh;q=0.5");
get.setHeader("Connection", "keep-alive");
get.setHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36");
long t = System.currentTimeMillis();
HttpResponse httpResponse = httpclient.execute(get);
System.out.println(url + "请求结束:" + (System.currentTimeMillis() - t));
int statusCode = httpResponse.getStatusLine()
.getStatusCode();
if (HttpStatus.SC_OK == statusCode) {
HttpEntity ent = httpResponse.getEntity();
buffer = new byte[1024];
InputStream in = ent.getContent();
fo = new FileOutputStream(new File(baseFolder + File.separator + fileName), true);
while ((byteread = in.read(buffer)) != -1) {
bytesum += byteread;
// sb.append(new String(buffer, 0, byteread,"UTF-8"));
fo.write(buffer, 0, byteread);
}
fo.close();
}
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
return sb.toString();
}
